The argument principle in a spectral problem for systems of ordinary differential equations with singularities

zbMath0951.34056MaRDI QIDQ1569315

V. I. Ul'yanova, L. F. Yukhno, A. A. Abramov

Publication date: 2 July 2000

Published in: Computational Mathematics and Mathematical Physics (Search for Journal in Brave)

zbMATH Keywords

eigenvalueordinary differential equationsingularityargument principle

Mathematics Subject Classification ID

General spectral theory of ordinary differential operators (34L05) Singular nonlinear boundary value problems for ordinary differential equations (34B16) Linear boundary value problems for ordinary differential equations (34B05) Boundary value problems on infinite intervals for ordinary differential equations (34B40) Numerical solution of eigenvalue problems involving ordinary differential equations (65L15) Eigenvalues, estimation of eigenvalues, upper and lower bounds of ordinary differential operators (34L15)

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